public class Example29 {
    public static void main(String[] args) {
        int[] arr = {9,8,3,5,2};
        System.out.println("冒泡排序前 ：");
        printArray(arr);
        bubbleSort(arr);
        System.out.println("冒泡排序后 ：");
        printArray(arr);

    }
    public static  void printArray (int[] arr) {
        for (int i = 0; i<arr.length; i++) {
            System.out.println(arr[i] + "");
        }
        System.out.println("\n");
    }
    public static void bubbleSort (int[] arr) {
        for (int i = 0; i< arr.length - 1; i++) {
            for (int j = 0; j <arr.length - i - 1; j++) {
                if (arr[j] > arr[j + 1 ]) {
                    int temp = arr[j];
                    arr[j] = arr[j + 1];
                    arr[j + 1] = temp;
                }
            }
            System.out.println("第" + (i + 1) + "轮排序后：");
            printArray(arr);
        }
    }
}
